/*div{
	font-size: 18px;
}
#a1{
	color: blue;
}
.a1{
	color: green;
}

.aa1 #a1{
	float: left;
	color: red;
	border: solid 2px #ccc;
	background: #ccc;
	padding: 10px;
	margin: 10px;
	width: 200;
	height: 50px;
}

.aa1 #a2{
	float: right;
	color: red;
	border: solid 2px #ccc;
	background: #ccc;
	padding: 10px;
	margin: 10px;
	width: 200;
	height: 50px;
}

.aa2{
	overflow: hidden;
}*/

